青海种植山茛菪根部微量元素含量特征

Contents of Trace Elements in the Root of Qinghai Cultivated Anisodus tanguticus

青海地道中藏药材山莨菪人工引种栽培试验成功。采集2—7年生人工种植山莨菪，采用原子吸收光谱仪测定其根部的铜、锰、镍、钴、锌5种微量元素含量。结果表明：铜和锌最高，锰次之，钴和镍最低。在2～7年的生长周期中，铜和钴具有正相关关系，最高含量均出现在第7年；锰和锌在植物体内起着协同或促进的作用，最高含量均在第五年。

The Anisodus tanguticus（ Maxim. ） Pascher is a Chinese traditional medicinal material and Tibet herb of local Qinghai, and the test of cultivated has a good result in Qinghai Province. We collected the cultivated Anisodus tanguticus （Maxim.） Pascher of 2-7 years ,and analyzed the contents of trace elements as Cu,Mn,Ni,Co,Zn by Atomic Absorption Spetrometer. The results show that：the contents of Cu and Zn are the highest,with Mn lower, and Ni together with Co is the lowest . During the growth periods of 2-7 years, the contents of Cu and Co have the same trend, with 7-year-growth climax, and meanwhile, Mn and Zn have the same trend, with 5-year-growth climax.